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中华诊断学电子杂志 ›› 2023, Vol. 11 ›› Issue (01) : 21 -27. doi: 10.3877/cma.j.issn.2095-655X.2023.01.005

神经精神疾病诊治

进展性双侧延髓内侧梗死的临床特征
周红1, 杨位霞1,()   
  1. 1. 201700 上海,复旦大学附属中山医院青浦分院神经内科
  • 收稿日期:2022-10-12 出版日期:2023-02-26
  • 通信作者: 杨位霞

Clinical characteristics of bilateral medial medullary infarction in progression

Hong Zhou1, Weixia Yang1,()   

  1. 1. Department of Neurology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai 201700, China
  • Received:2022-10-12 Published:2023-02-26
  • Corresponding author: Weixia Yang
引用本文:

周红, 杨位霞. 进展性双侧延髓内侧梗死的临床特征[J]. 中华诊断学电子杂志, 2023, 11(01): 21-27.

Hong Zhou, Weixia Yang. Clinical characteristics of bilateral medial medullary infarction in progression[J]. Chinese Journal of Diagnostics(Electronic Edition), 2023, 11(01): 21-27.

目的

探讨进展性双侧延髓内侧梗死(BMMI)的临床特征。

方法

选择2021年12月14日和2022年5月9日经复旦大学附属中山医院青浦分院神经内科确诊的2例进展性BMMI患者的临床资料,总结BMMI的诊断学特征,并复习相关文献。

结果

患者均为男性,年龄分别为50岁、40岁,病例1患者首发症状为头晕,病例2患者首发症状为头晕伴头颈疼痛。2例患者均于发病12 h内进展出现偏侧肢体乏力,并且在第2天偏侧肢体乏力进一步加重;随着病情进展,2例患者均出现构音障碍、吞咽困难;病例1患者在发病后1周出现四肢瘫痪。2例患者头颅磁共振成像(MRI)表现为双侧延髓内侧沿中线向背侧延伸的弥散加权成像(DWI)高信号病灶,外观类似"心"形或"Y"形,均确诊为BMMI。

结论

BMMI典型的临床表现为四肢瘫痪、吞咽困难、构音障碍、深感觉障碍等,该病首发症状多不典型,应尽早完善头颅MRI检查有利于早期诊断和指导治疗。

Objective

To explore the clinical characteristics of progressive bilateral medial medullary infarction(BMMI).

Methods

The clinical data of two patients with progressive BMMI diagnosed in the Department of Neurology, Qingpu Branch of Zhongshan Hospital of Fudan University on December 14, 2021 and May 9, 2022 were chosen to summarize the diagnostic features of BMMI, and the relevant literatures were reviewed.

Results

The patients were all men between the ages of 50 and 40. Case 1 patient′s first symptom was dizziness, while case 2 patient′s first symptom was dizziness with head and neck pain. Both patients experienced lateral limb weakness within 12 hours of onset, which was exacerbated on the second day. As the disease progressed, both patients developed dysarthria and dysphagia. One week after onset, case 1 patient developed quadriplegia. Two patients were diagnosed with BMMI using head magnetic resonance imaging (MRI), which revealed high signal lesions extending along the midline to the dorsal side, resembling a " heart" or " Y" shape on diffusion weighted imaging(DWI).

Conclusions

Quadriplegia, dysphagia, dysarticulation, deep sensory disorders, and other clinical manifestations of BMMI are common. Because the early symptoms of this disease are mostly atypical, it is critical to improve the head MRI examination as soon as possible to facilitate early diagnosis and treatment guidance.

图1 病例1进展性双侧延髓内侧梗死患者入院时脑卒中多模态增强CT血管重建图像注:颅脑CTA可见右侧椎动脉纤细,为非优势椎,左侧椎动脉为优势椎,左椎动脉颅内段远端狭窄,非优势椎远端多发节段性狭窄(箭头所示)
图2 病例1进展性双侧延髓内侧梗死患者入院后第2天及入院后1周头颅MRI检查图像注:a~c图为患者入院后第2天头颅MRI检查图像,a图横断面弥散加权成像(DWI)显示右侧延髓腹侧高信号影;b图T2WI像表现为高信号;c图表观弥散系数(ADC)表现为低信号;d~f图为患者入院后一周头颅MRI检查图像,d图横断面DWI显示延髓腹侧"心"形高信号影;e图T2WI像相应位置表现为高信号;f图ADC表现为低信号(箭头所示)
图3 病例2进展性双侧延髓内侧梗死患者入院第1天及入院近3周时头颅MRI检查图像注:a~c图为患者入院第1天头颅MRI检查图像,a图横断面DWI显示双侧延髓前内侧对应区域高信号,呈特征性的"Y"形外观;b图T2WI像表现为高信号;c图ADC显示双侧延髓前内侧对应区域低信号;d~g图为患者入院后近3周头颅MRI检查图像,d图横断面DWI双侧延髓前内侧对应区域高信号;e图双侧延髓前内侧对应区域ADC信号不减低;f图液体抑制反转恢复序列(FLAIR);g图T2WI像相应位置表现为高信号(箭头所示)
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